Jones also shanked a 28-yard attempt in the third quarter with the score tied, 6-6.

Mike Nugent kicked a 36-yard field goal of his own in overtime, which ended up giving the Buckeyes their third victory of the season without scoring a touchdown on offense.

The Boilermakers almost blocked Nugent's kick.

"Yeah, the last field goal was tipped," holder B.J. Sander said. "I think it was No. 59 [linebacker Stanford Keglar]. He got a piece of it. But Nuge is a great kicker and he put it through."

Nugent could have won the game on the last play of regulation, but Purdue's Bobby Iwuchukwu leaped high to block a 41-yard try.

The victory keeps the Buckeyes, 10-1 overall and 6-1 in the Big Ten, in contention for the national title. They are tied with No. 5 Michigan for the conference lead heading into their showdown Saturday in Ann Arbor.

Purdue (8-3, 5-2) lost its sixth in a row to the Buckeyes in Columbus.

Ohio State, the defending national champion, kept alive its streak of winning close calls. The Buckeyes were 7-0 in games decided by a touchdown or less a year ago and are 5-1 this season.

Saturday, backup defensive end Mike Kudla pounced on Kyle Orton's fumble in the end zone with 11:23 left in the fourth quarter to break the tie and put the Buckeyes in front, 13-6.

Orton, who completed 27 of 47 passes for 249 yards without an interception, was sandwiched between Ohio State linemen Tim Anderson and Will Smith near the goal line on third and seven from the Purdue eight. Anderson reached out and pulled Orton's arm loose from the ball and Kudla scrambled in to fall on the ball.

"I was a little wide-eyed," Kudla said of his first collegiate points.